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Data Recovery
24/7
To Locations Worldwide |
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HOW
DOES RAID 50 WORK? |
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RAID 50 (also called RAID 5+0) uses a
minimum of six drives. If six drives are used, the
drives
are split into two groups of RAID 5 and striped with parity.
Each of the RAID 5
segments is then
striped as in a RAID 0. The total storage capacity
depends on the
number of drives in the array,
but it is important to remember each RAID 5 segment loses
the
capacity of one disk for parity. RAID 50 is very
expensive, but it provides a higher
level of fault tolerance over
other RAID levels.
RAID 50 also offers better write performance
than RAID 5.
in RAID 50, the
failure of one or more drives is tolerable as
long as there is
only one failure per each RAID 5 segment.
RAID 50 is frequently used in
many different types of servers that demand high performance
and also in many network attached storage (NAS) devices. For more
information about the
NAS devices with built-in RAID 50 technology,
click here.
The following diagram illustrates a RAID level 50:
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WHAT CAUSES RAID FAILURE? |
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There can be many reasons for
a failed RAID 50.
Listed below are the most common:
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Bad Sectors |
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Missing
Partitions |
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Corrupt RAID Data |
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Overwritten
Files |
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Corrupt Files in the RAID |
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RAID Backup Failed |
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RAID
Controller Failure |
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Broken RAID 0 |
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Damaged Files in the Array |
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RAID 0 Offline |
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Deleted Files in the Array |
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RAID Crashed |
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Failed RAID 0 |
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RAID
Firmware Failure |
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RAID 0 Drive
Failure |
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Power Surge |
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RAID
Power
Failure |
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Array Will Not Boot |
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RAID Rebuild
Failed |
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MFT Corruption |
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WHAT
TO DO IF YOU EXPERIENCE RAID FAILURE |
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If you
experience problems with your RAID 50 array, please do not attempt
to correct the
problem
yourself. By taking matters into your own hands, you
could overwrite parity data
making RAID
recovery more difficult. Please follow
the steps below and contact ReWave
for assistance at
866-739-2835.
Turn off your RAID 50 array immediately.
This ensures that no additional data
can be written to the array, which could overwrite the data
you are trying to recover.
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Document the events that occurred causing RAID
50 failure. Try to
make
notes documenting any problems that occurred and efforts
that were made to fix the
problems. If you remove
the drives from the array, it is
important to label the drives
with the same order in which
they existed in the array. Although not required, this
step will save us time during the RAID recovery process. |
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Contact ReWave immediately. Our data recovery
team is available 24/7 to assist
you with RAID recovery at 866-739-2835. |
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